From: Gerd Knorr <kraxel@bytesex.org>
To: linux-kernel@vger.kernel.org
Subject: Re: removable media revalidation - udev vs. devfs or static /dev
Date: 09 Jan 2004 10:49:03 +0100 [thread overview]
Message-ID: <87wu81tptc.fsf@bytesex.org> (raw)
In-Reply-To: 20040109033655.GK11065@ca-server1.us.oracle.com
Joel Becker <Joel.Becker@oracle.com> writes:
> On Wed, Jan 07, 2004 at 10:57:00AM -0800, Greg KH wrote:
> > Hm, that would work, but what about a user program that just polls on
> > the device, as the rest of this thread discusses? As removable devices
> > are not the "norm" it would seem a bit of overkill to create 16
> > partitions for every block device, if they need them or not.
>
> Um, adding all 16 partitions for a block device that has 5
> defined is opposite of the intention of udev, no?
It shouldn't be _that_ bad.
removable media devices usually tell you that they are removable media
devices (scsi: inquiry data has a bit for that IIRC). If you pass
this up to hotplug it can use that to figure whenever it has a hard
disk (=> just create the existing partitions) or a removable device
(=> create a few more nodes to catch the usual removable media
layouts).
I also think you don't need *all* minors for removable media. I
havn't seen removable media with extended partitions so far. IIRC zip
floppys are using /dev/sda4 and most other ones either /dev/sda1 or
/dev/sda directly, so we likely can catch 99% with just three device
nodes.
Gerd
--
You have a new virus in /var/mail/kraxel
next prev parent reply other threads:[~2004-01-09 10:11 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-01 20:33 removable media revalidation - udev vs. devfs or static /dev Andrey Borzenkov
2004-01-03 5:58 ` Greg KH
2004-01-03 8:51 ` Andrey Borzenkov
2004-01-03 12:37 ` Andries Brouwer
2004-01-03 12:42 ` Olaf Hering
2004-01-03 16:05 ` Andrey Borzenkov
2004-01-03 17:54 ` Jens Axboe
2004-01-07 9:43 ` Olaf Hering
2004-01-07 9:50 ` Jens Axboe
2004-01-07 9:56 ` Olaf Hering
2004-01-07 9:59 ` Jens Axboe
2004-01-07 10:25 ` Olaf Hering
2004-01-07 10:31 ` Jens Axboe
2004-01-07 10:47 ` Andrey Borzenkov
2004-01-07 10:54 ` Jens Axboe
2004-01-07 17:56 ` Greg KH
2004-01-30 12:59 ` Olaf Hering
2004-01-07 11:00 ` Andrey Borzenkov
2004-01-07 11:05 ` Jens Axboe
2004-01-07 11:14 ` Andrey Borzenkov
2004-01-07 11:16 ` Jens Axboe
2004-01-03 20:51 ` Greg KH
2004-01-07 18:38 ` Linus Torvalds
2004-01-07 18:57 ` Greg KH
2004-01-07 19:23 ` Mika Penttilä
2004-01-07 19:24 ` Greg KH
2004-01-07 19:31 ` Mika Penttilä
2004-01-08 1:38 ` Linus Torvalds
2004-01-07 19:31 ` Linus Torvalds
2004-01-07 19:50 ` Greg KH
2004-01-07 20:25 ` Richard Troth
2004-01-07 20:38 ` Valdis.Kletnieks
2004-01-07 23:34 ` Greg KH
2004-01-08 0:32 ` Martin J. Bligh
2004-01-08 0:41 ` Greg KH
2004-01-08 1:07 ` Martin J. Bligh
2004-01-08 1:15 ` Greg KH
2004-01-08 1:50 ` Martin J. Bligh
2004-01-08 18:34 ` Martin Schlemmer
2004-01-08 1:48 ` Linus Torvalds
2004-01-08 14:06 ` "Andrey Borzenkov"
2004-01-08 0:42 ` viro
2004-01-08 1:16 ` Greg KH
2004-01-09 3:36 ` Joel Becker
2004-01-09 9:49 ` Gerd Knorr [this message]
2004-01-12 17:16 ` Joel Becker
2004-01-12 23:08 ` J.A. Magallon
2004-01-07 20:52 ` Olaf Hering
2004-01-08 2:03 ` Linus Torvalds
2004-01-08 4:16 ` Gene Heskett
2004-01-08 4:23 ` Linus Torvalds
2004-01-08 7:45 ` Olaf Hering
2004-01-08 2:13 ` Andries Brouwer
2004-01-08 2:19 ` Linus Torvalds
2004-01-08 2:49 ` Andries Brouwer
2004-01-08 2:56 ` Linus Torvalds
2004-01-08 3:35 ` Andries Brouwer
2004-01-08 3:43 ` Linus Torvalds
2004-01-08 8:00 ` Xavier Bestel
2004-01-09 0:28 ` Robert Love
2004-01-09 0:52 ` Linus Torvalds
2004-01-09 1:16 ` Matt Mackall
2004-01-08 10:32 ` Éric Brunet
2004-01-08 5:19 Iqbal
2004-01-12 9:09 Ling, Xiaofeng
2004-01-12 13:02 Nicolas Mailhot
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